102 lines
3.1 KiB
Python
102 lines
3.1 KiB
Python
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import logging
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import msg
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class Connection:
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def __init__(self, peer = None):
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"""Create a Connection object with the given peer."""
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self.peer = peer
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def closed(self):
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logging.debug("connection closed with %s", self.peer)
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self.peer = None
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def close(self):
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logging.debug("closing connection with %s", self.peer)
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self.peer.closed()
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self.peer = None
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class ClientConnection(Connection):
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"""The parent class of client-side network connections. Subclass
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this class to do anything more elaborate than just passing arbitrary
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NetMsgs, which then get ignored. Use subclasses of this class when
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the server required no per-connection state, such as just fetching
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consensus documents."""
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def __init__(self, peer):
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"""Create a ClientConnection object with the given peer. The
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peer must have a received(client, msg) method."""
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self.peer = peer
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self.perfstats = None
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def sendmsg(self, netmsg):
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assert(isinstance(netmsg, msg.NetMsg))
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msgsize = netmsg.size()
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self.perfstats.bytes_sent += msgsize
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self.peer.received(self, netmsg)
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def reply(self, netmsg):
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assert(isinstance(netmsg, msg.NetMsg))
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msgsize = netmsg.size()
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self.perfstats.bytes_received += msgsize
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self.receivedfromserver(netmsg)
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class ServerConnection(Connection):
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"""The parent class of server-side network connections."""
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def __init__(self):
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self.peer = None
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def sendmsg(self, netmsg):
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assert(isinstance(netmsg, msg.NetMsg))
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self.peer.received(netmsg)
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def received(self, client, netmsg):
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logging.debug("received %s from client %s", netmsg, client)
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class DirAuthConnection(ClientConnection):
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"""The subclass of Connection for connections to directory
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authorities."""
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def __init__(self, peer):
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super().__init__(peer)
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def uploaddesc(self, desc):
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"""Upload our RelayDescriptor to the DirAuth."""
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self.sendmsg(msg.DirAuthUploadDescMsg(desc))
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def getconsensus(self):
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self.consensus = None
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self.sendmsg(msg.DirAuthGetConsensusMsg())
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return self.consensus
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def getconsensusdiff(self):
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self.consensus = None
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self.sendmsg(msg.DirAuthGetConsensusDiffMsg())
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return self.consensus
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def getendive(self):
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self.endive = None
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self.sendmsg(msg.DirAuthGetENDIVEMsg())
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return self.endive
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def getendivediff(self):
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self.endive = None
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self.sendmsg(msg.DirAuthGetENDIVEDiffMsg())
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return self.endive
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def receivedfromserver(self, message):
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if isinstance(message, msg.DirAuthConsensusMsg):
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self.consensus = message.consensus
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elif isinstance(message, msg.DirAuthConsensusDiffMsg):
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self.consensus = message.consensus
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elif isinstance(message, msg.DirAuthENDIVEMsg):
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self.endive = message.endive
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elif isinstance(message, msg.DirAuthENDIVEDiffMsg):
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self.endive = message.endive
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else:
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raise TypeError('Not a server-originating DirAuthNetMsg', message)
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